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 Changes in TIFF v4.3.0
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TIFF CHANGE INFORMATION
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Current Version: v4.3.0 
Previous Version: <A HREF="v4.2.0.html">v4.2.0</A> 
Master Download Site: <A HREF="https://download.osgeo.org/libtiff">
download.osgeo.org</a>, directory pub/libtiff 
Master HTTP Site #1: <A HREF="http://www.simplesystems.org/libtiff/">
 http://www.simplesystems.org/libtiff/</A> 
Master HTTP Site #2: <A HREF="https://libtiff.gitlab.io/libtiff/">
 https://libtiff.gitlab.io/libtiff/</A> 
Master HTTP Site #3: <A HREF="http://libtiff.maptools.org/">
http://libtiff.maptools.org/</a>
<HR SIZE=4 ALIGN=left>
</div>

This document provides a summary of significant changes made to the
software between the previous and current versions (see
above). A fully-detailed change summary is provided by the ChangeLog file
included in the release package and by the Git commit history:
<UL>
<LI><A HREF="#highlights">Major Changes</A>
<LI><A HREF="#configure">Changes in the software configuration</A>
<LI><A HREF="#libtiff">Changes in libtiff</A>
<LI><A HREF="#tools">Changes in the tools</A>
<LI><A HREF="#contrib">Changes in the contrib area</A>
</UL>

<HR ALIGN=left>

<A NAME="highlights">MAJOR CHANGES:</A>

<UL>

<LI>Build and usage of the library and its utilities requires a C99 capable
 compiler.</LI>

<LI>New optional codec for the LERC (Limited Error Raster Compression) compression scheme.
 To have it available, configure libtiff against the SDK available at
 https://github.com/esri/lerc</LI>

<LI>CMake build: revamp of build scripts</LI>
</UL>

<A NAME="configure">CHANGES IN THE SOFTWARE CONFIGURATION:</A>

<UL>

<LI>cmake: revamp of the cmake build scripts. There are impacts on the case of
 some options.</LI>

<LI>cmake: update minimum version and policy version to 3.9.</LI>

<LI>Remove NMake build support. The functionality provided by the NMake build
 is now completely superseded by the CMake build.</LI>

<LI>Remove antiquated Scons and makefile.lcc build support.</LI>

<LI>Remove non-functional VMS and WinCE support.</LI>

<LI>autogen.sh now updates config.guess and config.sub from master gnulib version.</LI>

</UL>

<A NAME="libtiff">CHANGES IN LIBTIFF:</A>

<UL>

<LI>Use of "int8", "uint8", "int16", "uint16", "int32", "uint32", "int64", "uint64"
 typedefs is now deprecated. libtiff code and headers no longer use them,
 and use their C99 standard equivalents (with "_t" suffix). Those typedefs
 are still available, with deprecation warnings, but external code is strongly
 encouraged to use the corresponding C99 stdint.h types. The deprecated
 types might be removed in a future release.</LI>

<LI>Removal of unused, or now useless due to C99 availability, functions in port/</LI>

<LI>A few issues spotted by static code analysis tools fixed. Compiler
 warnings addressed.</LI>
</UL>

<A NAME="tools">CHANGES IN THE TOOLS:</A>

<UL>

<LI>In usage text, insert a line of text summarizing each tool's purpose </LI>

<LI>tiff tools: made display of compression methods and their parameters
 conditional on their actual availability</LI>

<LI>tiff2ps: exit the loop in case of error (#232)</LI>

<LI>tiff2pdf: check that tiff_datasize fits in a signed tsize_t (#202)</LI>

<LI>tiffsplit: exit with EXIT_FAILURE if there are extra args on the command line</LI>

<LI>tiffcmp: fix comparaison with pixels that are fractional number of bytes (#53)</LI>

</UL>

<A NAME="contrib">CHANGES IN THE CONTRIB AREA:</A>

<UL>

<LI>iptcutil.c - set '#ifdef _WIN32' (was '#ifdef WIN32', which failed at build time)</LI>

</UL>

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